Patents by Inventor Nobuhisa YASUDA

Nobuhisa YASUDA has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method of designing torsion bars used for trunk lid
    Patent number: 10229242
    Abstract: In a design method of torsion bars used for a trunk lid, free shapes of the torsion bars unhitched from the trunk lid are designed. A center line model of the initial free shape is geometrically and statically created on the basis of a design specification. The center line model of an open shape is created from the free shape model and is deformed into a center line model of a closed modified shape. The center line models of the analyzed closed shape and the target closed shape is compared with each other to obtain a difference torque and a difference vector occurring between corresponding nodes on the center lines. The center line model is so changed as to decrease the difference torque and the difference vector.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: March 12, 2019
    Assignee: NHK SPRING CO., LTD.
    Inventors: Yoshio Kobayashi, Shinichi Nishizawa, Nobuhisa Yasuda
  • METHOD OF DESIGNING TORSION BARS USED FOR TRUNK LID
    Publication number: 20170286591
    Abstract: In a design method of torsion bars used for a trunk lid, free shapes of the torsion bars unhitched from the trunk lid are designed. A center line model of the initial free shape is geometrically and statically created on the basis of a design specification. The center line model of an open shape is created from the free shape model and is deformed into a center line model of a closed modified shape. The center line models of the analyzed closed shape and the target closed shape is compared with each other to obtain a difference torque and a difference vector occurring between corresponding nodes on the center lines. The center line model is so changed as to decrease the difference torque and the difference vector.
    Type: Application
    Filed: March 30, 2016
    Publication date: October 5, 2017
    Applicant: NHK SPRING CO., LTD.
    Inventors: Yoshio KOBAYASHI, Shinichi NISHIZAWA, Nobuhisa YASUDA